BOISE 7 N, IDAHO

Monthly Total Growing Degree Days

(101017)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1973 0.00 z 0.00 z 0.00 z 0.00 z 531.00 739.50 1081.00 1010.00 631.50 313.50 103.00 13.50 4423.00
1974 30.50 8.00 88.50 194.50 359.00 867.00 992.50 923.00 710.00 292.00 66.50 4.50 4536.00
1975 4.00 4.50 32.00 52.00 387.00 602.50 1080.50 835.00 707.50 333.00 75.00 33.50 4146.50
1976 3.00 25.50 42.50 146.00 516.50 608.50 997.50 802.00 693.00 302.50 113.50 1.00 4251.50
1977 0.00 f 27.00 45.00 385.00 324.00 852.00 995.50 1027.13 a 643.50 348.00 67.50 32.00 4746.63
1978 5.50 9.50 228.50 177.50 365.00 685.00 972.00 914.50 606.00 385.00 51.50 0.00 4400.00
1979 0.00 22.00 93.00 222.00 471.00 746.00 1057.50 958.00 818.00 413.50 24.00 27.50 4852.50
1980 15.00 57.50 29.00 325.00 436.00 622.50 973.00 833.50 634.50 326.50 100.00 46.50 4399.00
1981 4.00 27.00 88.50 260.00 386.50 646.50 934.50 1109.00 723.00 264.00 135.00 49.00 4627.00
1982 2.00 45.50 57.00 161.50 395.50 742.50 923.50 1022.50 617.50 266.50 7.00 14.50 4255.50
1983 24.00 46.00 90.50 149.00 477.50 666.50 888.50 1067.50 599.50 377.00 123.50 3.50 4513.00
1984 0.00 0.00 63.50 164.50 421.00 605.00 1037.00 1092.00 581.50 253.50 43.00 0.00 4261.00
1985 0.00 0.00 26.00 365.50 534.00 776.50 1199.00 882.50 441.00 261.00 47.00 0.00 4532.50
1986 24.00 88.00 206.00 183.00 526.00 899.50 917.50 1130.50 487.50 357.00 76.00 1.50 4896.50
1987 15.50 17.00 132.50 434.50 637.50 857.00 949.50 964.00 798.00 495.00 103.00 47.00 5450.50
1988 3.50 46.50 99.00 334.00 509.00 865.50 1072.50 1003.00 659.50 629.50 75.50 0.00 5297.50
1989 0.00 1.00 115.50 342.00 456.00 795.00 1108.00 919.00 687.50 321.00 71.50 6.00 4822.50
1990 22.00 9.50 122.50 370.00 402.00 714.50 1046.00 1022.50 889.00 327.00 85.50 3.50 5014.00
1991 2.00 61.50 71.00 160.50 351.00 573.50 1044.00 1109.00 750.00 414.00 30.50 4.50 4571.50
1992 20.00 74.00 221.00 370.50 693.00 823.50 931.50 1037.00 665.00 430.00 13.50 0.50 5279.50
1993 0.00 0.00 98.50 188.50 614.50 541.50 685.50 832.00 669.00 362.00 14.00 31.50 4037.00
1994 1.50 15.00 164.00 294.00 537.50 728.50 1065.00 1053.50 764.50 295.50 7.00 13.50 4939.50
1995 26.50 92.00 92.50 162.00 392.50 592.50 899.00 861.50 701.50 249.50 160.00 31.50 4261.00
1996 3.00 46.00 107.50 210.00 357.50 652.50 1001.00 945.00 562.00 345.00 68.50 44.50 4342.50
1997 11.50 15.00 149.00 192.00 579.00 626.50 861.50 986.50 744.00 303.00 70.00 0.50 4538.50
1998 23.50 20.50 120.00 196.50 371.50 550.00 1039.00 1010.50 804.50 290.00 74.00 12.00 4512.00
1999 6.00 16.00 112.50 160.50 356.00 630.00 930.00 1000.00 638.50 409.20 a 229.00 0.50 4488.20
2000 8.50 49.00 65.00 328.50 466.50 691.50 1004.00 1003.00 587.00 315.50 4.00 0.00 4522.50
2001 0.00 2.00 146.50 212.00 546.63 a 671.00 968.50 1117.00 794.00 380.50 151.50 0.00 4989.63
2002 9.00 10.00 83.00 235.50 466.03 a 742.00 1121.00 869.00 692.50 273.00 82.00 45.00 4628.03
2003 53.00 17.50 163.00 184.00 455.00 711.50 1152.00 1066.00 740.00 531.50 37.50 34.50 5145.50
2004 0.00 7.00 219.50 299.00 439.00 733.50 1031.50 963.00 622.50 379.00 25.00 22.00 4741.00
2005 1.50 8.50 134.50 221.00 459.00 580.00 1048.00 1033.50 642.50 368.50 39.00 21.50 4557.50
2006 13.00 27.50 64.50 256.50 517.50 776.00 1146.00 942.00 681.50 296.50 135.00 12.00 4868.00
2007 1.50 43.00 216.50 238.00 530.50 756.50 1211.50 978.50 635.50 274.50 91.00 18.00 4995.00
2008 2.50 5.50 33.00 128.00 471.00 643.00 1018.00 978.00 671.00 333.50 98.00 8.00 4389.50
2009 8.00 15.00 66.00 220.50 508.50 666.50 1027.50 969.00 815.50 200.50 61.50 2.50 4561.00
2010 5.50 11.00 86.00 188.50 277.50 608.00 918.50 889.50 714.00 421.50 103.50 8.00 4231.50
2011 7.00 30.50 45.47 a 86.00 321.00 540.00 922.00 1033.00 800.00 339.00 30.00 b 11.37 a 4165.33
2012 2.50 1.50 163.50 306.00 411.27 a 637.50 1113.50 1054.50 756.00 314.50 134.00 26.00 4920.77
2013 0.00 1.00 122.00 11.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 123.00
Period of Record Statistics
MEAN 9.21 25.09 107.60 233.44 456.41 694.17 1009.10 981.17 684.47 344.79 75.66 15.78 4630.01
S.D. 11.41 24.38 56.89 88.34 91.66 97.74 99.60 85.71 91.35 81.30 48.46 16.07 348.18
SKEW 1.83 1.17 0.62 0.37 0.38 0.37 -0.50 -0.29 -0.25 1.33 0.77 0.75 0.49
MAX 53.00 92.00 228.50 434.50 693.00 899.50 1211.50 1130.50 889.00 629.50 229.00 49.00 5450.50
MIN 0.00 0.00 26.00 52.00 277.50 540.00 685.50 802.00 441.00 200.50 4.00 0.00 4037.00
NO YRS 39 40 40 39 40 40 40 40 40 40 40 40 38